Virunga National Park anti-poaching ranger Mathieu Shamavu posted his selfie with the two gorillas on Facebook as part of his units' efforts to raise awareness and funds for the species at the UNESCO World Heritage site.

Two gorillas have been snapped apparently mimicking human behavior, in a remarkable selfie with a park ranger who helped rescue them as babies.

"Conserving Virunga's awesome wildlife is a constant challenge for the Park and our work wouldn't be possible without your support", they said in the post. "Also, it's no surprise to see these girls on their two feet either - most primates are comfortable walking upright (bipedalism) for short bursts of time", the park said. The photo has been shared by 21,000 Facebook users and has received 16,000 likes so far.

"Those gorilla gals are always acting cheeky so this was the flawless shot of their true personalities", Virunga National Park wrote on Instagram.

"We want to emphasize that these gorillas are in an enclosed sanctuary for orphans to which they have lived since infancy", they wrote. While gorillas can be risky to humans and have be known to kill, a strong bond has formed between the critically endangered primates and the Virgunga park rangers. Additionally, the park said that the photo was a result of "exceptional circumstances" and that it's never a good idea to approach gorillas in their natural habitats.

Mountain gorillas are among the most endangered species in the world, with around 1,000 left in the wild.